According to KENS 5 Meteorologist Jared Silverman, the National Weather Service does not confirm whether events like these are officially considered funnel clouds or rain columns. But he can confirm that, with no rotation, it definitely wasn't a tornado.

Been getting tons of pics on this cloud near the SA airport. No rotation, it's not a tornado, but could be a funnel cloud or a rain column. pic.twitter.com/6bBzhHLN4Z